In which areas are vehicles strictly prohibited from operating on the airside?

Vehicles are strictly prohibited from operating in active runway areas and restricted zones due to the high level of safety risks associated with those locations. Active runways are designated for aircraft takeoffs and landings, and any vehicle movement can create potential hazards that jeopardize the safety of aircraft, passengers, and airport operations. Restricted zones often contain sensitive security infrastructure and areas where aircraft are being serviced or parked. Limiting vehicle access in these areas helps prevent accidents, maintains secure environments, and ensures that the airport operations can proceed smoothly without interference.

The other choices may involve restrictions, but they do not encompass the same critical safety concerns associated with active runways and restricted zones. For instance, while there might be rules regarding vehicle operation in passenger boarding areas or cargo handling zones, the absolute prohibition is most stringent where aircraft are actively engaged in flight operations and in the most sensitive operational areas.